Great thread guys!
Speaking from the point of view of an aerodynamics user rather than expert, I sure appreciate the time many have taken to explain things.
I'm with PA on the "new training." This was an item covered during my last initial type in 2005. I think it was a special emphasis item due to that Pinnacle RJ over the US midwest.
FWIW (and it may not be worth a thing...), the Gulfstream 5 has a normalized AoA indicator. Pitch Limit Indicator (PLI) shows up at .70, shaker at .85 and pusher at 1.0. Gulfstream used to publish great LRC tables that utilized AoA, but they ceased that with the G-4.
Best,
GC